Improvement in steam and water gages



"T. HOLLAND.- Steam and Water Gage.

N0. 221-,919. Patented Nov. 25,1879.

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IWVEJIVTOR; I

1. PETERS, PHOTO-LITHOGRAPHER, WASHINGYON. D 04 ITED STATES PATENT 'QFFIc V TIMOTHY HOLLAND, OF TROY, NEW YORK.

IMPROVEMENT IN STEAM AND WATER GAGES.-

Specification forming part of Letters Patent No. 221,919, dated November 25, 1879; application filed July 20, 1879. i

To all whom it may concern:

Be it known that I, TIMOTHY HOLLAND, of the-city of Troy, county of Rensselaer, and State of New York, have invented a new and useful Improvement in Steam and Water Gages, of which the following is a specification, reference being had to the accompanying drawing, in which Figure 1 is an elevation, shown partly in section.

The object of my invention is to combine the water-gage and gage-cocks with the steamgage in such a manner that they can be inspected and operated with more ease and 0011- venience, and that the number of-holes now required in the shell of the boiler will be reduced, and also to protect the steam-gage more effectually from the action of the live steam.

To accomplish this I construct the column or cylinder A of cast-iron oi other suitable material closed at top and bottom, so as to form a water and steam tight reservoir, which is connected with the boiler and supported in a vertical position by the pipes or tubes B and B, the former entering said boiler at or above highwater line, and the latter at lowwater line, freely admitting both steam and water to the column, making it a component part of boiler aforesaid.

Attached to the outside of the column A and communicating with the interior of same, as shown, are the double-valved and valveseated water-gage cocks O, O, and O, which are connected by the glass tubes D and D,

extending between them, also, as shown.

Attached'to the top of column A and extending centrally downward through the same below the lowest inlet-pipe, B, is the pipe or tube E, the lower end of which is open, and which also extends sufficiently above the top of said column to admit of an ordinary steamgage, F, being attached to upper end of same, as shown at E.

Attached to the bottom of column is the ordinary stop-cock G. When in operation the steam. and water pass freely from the boiler into the'coluinn A, and thence through the gage-cocks O, G, and C, and into the connecting glass tubes D and 1), through which the height of water can be readily seen, which therefore answers the same purpose as the usual water-gage as long as the outer valves are closed. By screwing in spindles sufficiently to open the outer valve, but not far enough to close the inner valves, the steam and water will freely escape from said gagecocks, so that the same may be used in like manner and for the same purposeas the ordinary gage-cocks. When necessary for any reason to shut off the connection between the water-gage and cooks and the column A, the inner valves may be closed by screwing in the spindles the entire distance, so that the inner valves rest upon the inner valve-seats.

By the extension of the pipe E below the lowest inlet-pipe, B, as shown and before described, the lower and open end of the same is always submergedas long as any water remains in the column A, so as to prevent the possibility of live steam entering said pipe E and coming in contact with the steam-gage F, in consequence of which the dial might be disfigured, being a more perfect and effectual arrangement for this purpose than the ordinary siphon now in use. The lower end of said pipe being open, as described, allows the en trance of a column of water, by the pressure of which the aforesaid gage is operated as readily as if steam were admitted.

By opening the stop-cock G at bottom of column A the same may be cleaned or blown out when found necessary.

I do not confine myself to any peculiar form of gage-cock, but select that shown in the drawing as most convenient to illustrate the nature of my invention, reserving the right to vary the same, as circumstances may require.

What I claim is-- 1. The combination of the gage-cocks G, C and G" withthe glass tubes D and D, which extend betweenthem, respectively, above and below the centralgage, 0, as shown, for the purpose specified.

2. In combination with the steam-gage F and connectin g-pipe E, the column or reservoir A, when so constructed and arranged in respect to the boiler and inletpipes B B that the lower'portion of the said column extends below the lowest inlet-pipe, B, and forms a '4. The combination of the steam-gage]? and Well or chamber, which, being charged with the pipe E with the combined gage-cocks and Water when the same is above the level of the water-gage, all substantially as shown and lowest gage-cock, O", and said inlet B,ren1ains described, for the objects herein set forth. filled when it has fallen below them and ceased to flow from boiler, as sliown, for the purpose TIMOTHY HOLLAND. specified.

3. In combination with the steam-gage F W'itnesses: and column A, the connecting-pipe E, when JOHN F. THOMPSON, the same extends below the lowest inlet-pipe, H. LISLE FLEMING.

B, as shown, for the purpose specified. 

